bluecajun5.3

iTrader: (31)

thanks for the info. naked av. i'm glad i ordered my truck with the open diff. and not the g80. i didn't think they were that bad off. i have the eaton and 4.10 now and i love them...

zippy

with the weight of your truck you're better off going to a 4.10 and sticking with the stock converter for longevity concerns.

Mr. Sandog

Thanks zippy. Are you talking about longevity of the converter, tranny, or rear end?

Anyone else? I will need to know pretty quickly if I need gears so I can tell them to order them for next week's install....

moregrip

iTrader: (8)

zippy

converter and trans. i'm all for running more stall normally, but with your truck weighing over 6000lbs everyday (as in not just carrying a load or towing) i think you'll be happy with the converter that comes with the 65E that you bought. you could deffinitly use more gear to get that kind of weight moving and keep it moving in heavy wind or uphill without having to get into boost. you're milage i'd bet would be within 1 mpg. i've probably driven over a 100 av's (test driving used to be part of my job) and the 4.10 gear seemed to me to be the way to go for sure.

Eye-P

iTrader: (2)

Id do this:

Trailblazer converter
Transgo/ Servo's
TA Girdle
C-Clip elim kit

The real problem with the G80 is sloppy tolerances from the factory. Keep in mind that a old school 12 bolt is only 8.75 in ring gear and can withstand 750+ HP when setup properly.

with the 10 bolt ring gear being 8.6", it should deal with your setup reasonably well.

Mr. Sandog

So you're saying stay with the 3.73's?

What is a C-Clip Elim Kit? I've heard guys say it keeps your wheels on or something like that, but do I need it with the measley amount of torque (~400 RW) I'm making?

I've got the T/A Cover and a new 4L65E ready to go in with the Transgo and Vette servo....

Eye-P

iTrader: (2)

With stock GM rearends, axle's are held in place by a simple C-Clip inside the diff. If your axle breaks outboard of the C-Clip, the axle can, and prob will, walk itself away from your vehicle.

The C-Clip elim usually goes on the end of the axle housing. It retains the axle from there, eliminating the need for the C-Clips.

As for the gearing, I dont see the need. With the Transgo, youll have complete manual gear control at all speeds, which would be all I would need. Of course the 4:10's will be *slightly* better for drag racing; however you can accomplish the same thing by changing tire profile. And judging from the way you guys drive, changing tires happens with some regularity...

moregrip

iTrader: (8)

It must be my day

mzoomora

iTrader: (31)

Disk brake rears will usually not lose the wheel or axle. The caliper and bracket will hold it in. Unless the actual flange itself breaks off, but even a c-clip eliminator wouldnt save that.